Godzilla Raids Again Plot Synopsis:

After pilot Koji Kobayashi's plane goes down on Iwata Island he and his wingman, Shoichi Tsukioka, discover a second Godzilla locked in battle with another prehistoric creature: Anguirus. After alerting Japan of a new threat the military devises a plan to lure Godzilla away from shore with flares. After a freak accident nullifies the plan both Godzilla and Anguirus arrive in Osaka. The winner of the death-match will threaten Japan for years to come. That's when Tsukioka and Kobayashi take matters into their own hands.